On Tue, 11 Feb 2014 15:34:45 -0800
Andrew Morton <[email protected]> wrote:

> On Sat, 8 Feb 2014 15:45:22 +0800 Fabian Frederick <[email protected]> wrote:
> 
> > Currently, booting without initrd specified on 80x25 screen
> > gives a call trace followed by atkbd : Spurious ACK.
> > Original message ("VFS: Unable to mount root fs") is not available.
> > Of course this could happen in other situations...
> > 
> > -This patch displays panic reason after call trace which could help
> > lot of people even if it's not the very last line on screen.
> 
> Fair enough.  Hate it when that happens!
I was sure I was not the only one :)

> 
> > -Converting all panic.c printk(KERN_EMERG to pr_emerg(
> 
> You missed a couple.
Thanks a lot for addition and patch fix.
What a pleasure to see such professionalism !

> 
> --- a/kernel/panic.c~kernel-panicc-display-reason-at-end-pr_emerg-fix
> +++ a/kernel/panic.c
> @@ -275,8 +275,7 @@ unsigned long get_taint(void)
>  void add_taint(unsigned flag, enum lockdep_ok lockdep_ok)
>  {
>       if (lockdep_ok == LOCKDEP_NOW_UNRELIABLE && __debug_locks_off())
> -             printk(KERN_WARNING
> -                    "Disabling lock debugging due to kernel taint\n");
> +             pr_warn("Disabling lock debugging due to kernel taint\n");
>  
>       set_bit(flag, &tainted_mask);
>  }
> @@ -381,8 +380,7 @@ late_initcall(init_oops_id);
>  void print_oops_end_marker(void)
>  {
>       init_oops_id();
> -     printk(KERN_WARNING "---[ end trace %016llx ]---\n",
> -             (unsigned long long)oops_id);
> +     pr_warn("---[ end trace %016llx ]---\n", (unsigned long long)oops_id);
>  }
>  
>  /*
> _
> 
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